linux-kernel - [PATCH] XFS: Use a signed return type for suffix

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Date:	Sun, 20 Dec 2015 08:00:29 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	xfs@....sgi.com, Dave Chinner <david@...morbit.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] XFS: Use a signed return type for suffix_kstrtoint()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sun, 20 Dec 2015 07:56:36 +0100

The return type "unsigned long" was used by the suffix_kstrtoint()
function even though it will eventually return a negative error code.
Improve this implementation detail by using the type "int" instead.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 fs/xfs/xfs_super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 436b6ef..59c9b7b 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -137,7 +137,7 @@ static const match_table_t tokens = {
 };
 
 
-STATIC unsigned long
+STATIC int
 suffix_kstrtoint(char *s, unsigned int base, int *res)
 {
 	int	last, shift_left_factor = 0, _res;
-- 
2.6.3

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